/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/HierarchyEditor/NiagaraHierarchyViewModelBase.h
[TWeakObjectPtr](API\Runtime\Core\UObject\TWeakObjectPtr)< [UNiagaraHierarchyViewModelBase](API\Plugins\NiagaraEditor\ViewModels\HierarchyEditor\UNiagaraHierarch-_9) > GetHierarchyViewModel() const